Tagan Turbojet 1100w Quad SLI PSU
Published: 7th July 2006 | Source: Tagan | Price: |Load Testing
In order for the results from all current and future PSU reviews to remain fair and comparable, Overclock3D uses a custom built Power Supply load stress tester.
The tester will be placing the following loads on each of the Turbojet 1.1kw's rails:
+3.3v - 20a Load
+5.0v - 20a Load
+12v1 - 15a Load
+12v2 - 15a Load
+12v3 - 15a Load
+12v4 - 15a Load
The results are collected from a Mastech MAS-345 Multimeter which logs its readings via RS232 to a PC.
Efficiency tests are performed by measuring the wattage consumed by the power supply at the mains against the power (in watts) consumed by the OC3D power supply stress tester.
The results may not be as accurate as those produced by professional testing equipment, but will certainly come in handy when comparing several power supplies against each other.
At present Overclock3D doesn't have the professional equipment required to reliably measure the noise output of devices. However, as a new part of our testing procedure we will be recording the PSU at idle and load so that you can make your own judgments. All recordings are taken at 30cm distance from the unit.
Idle Recording - Download
Fan Increase Recording - Download
Load Recording - Download
Before you go away with the wrong impression from these recordings I'd like to remind you all that these recordings were taken outside of a PC case. As a result the PSU is actually quite a bit noisier in these recordings than it is in real life.
As stated earlier in the review, the Turbojet utilised two 80mm fans. The one closest to the back of your case is designed for silence, whereas the fan located inside your case is designed for performance. As a result the noise from the high-cfm performance fan is dampened by your case enclosure, and the majority of audible noise from the unit comes from the more silent Globe Fan.
Tagan have also impemented a fan speed controller that adjusts the rpm of the fans based on the PSU load. This works quite well, but you can expect the fans to be running at 100% once the PSU gets to around 75% load. You can hear the fan speed increase in the recording above.
For those of us looking for a silent PSU to go inside their HTPC system the Turbojet may not be ideal, however it is highly unlikely that a silent/HTPC system would ever need a whole 1.1kw of power. People utilising a Quad-SLI high-end system are likely to be accustomed to noise, and for these people the Turbojet's noise levels should be reasonably acceptable.